Struct QueryParams 

pub struct QueryParams { /* private fields */ }

The query parameters of a request, in the order they were sent.

A name may repeat, which is how ?tag=a&tag=b asks for either tag.

Implementations

impl QueryParams

pub fn new() -> Self

No parameters at all.

pub fn parse(query_string: &str) -> Self

Parse a raw query string, with or without its leading ?.

Examples

use lino_rest_api::query::QueryParams;

let query = QueryParams::parse("?tag=a&tag=b&limit=5");
assert_eq!(query.get_all("tag"), vec!["a", "b"]);
assert_eq!(query.get_last("limit"), Some("5"));

pub fn append<N: Into<String>, V: Into<String>>(&mut self, name: N, value: V)

Add one parameter, keeping any parameter of the same name.

pub fn get_all(&self, name: &str) -> Vec<&str>

Every value sent for a name, in order.

pub fn get_last(&self, name: &str) -> Option<&str>

The last value sent for a name, which is the one a scalar parameter means.

pub fn contains(&self, name: &str) -> bool

Whether a name was sent at all.

pub fn iter(&self) -> impl Iterator<Item = (&str, &str)>

The parameters, in the order they were sent.

pub fn names(&self) -> Vec<&str>

The distinct parameter names, in the order they first appeared.

pub fn is_empty(&self) -> bool

Whether any parameter was sent.

pub fn len(&self) -> usize

How many parameters were sent, counting repetitions.

pub fn to_query_string(&self) -> String

Render the parameters back as a query string.

Trait Implementations

impl Clone for QueryParams

fn clone(&self) -> QueryParams

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QueryParams

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for QueryParams

fn default() -> QueryParams

Returns the “default value” for a type.

impl Eq for QueryParams

impl PartialEq for QueryParams

fn eq(&self, other: &QueryParams) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for QueryParams